ultimatefighter

Hi all. Another dumb question. I took off all the smog stuff and cat, gutted the air intake boxes and while doing all this, i cracked a hose coming off the intake to the passenger side valve cover. I noticed some oil on the cover so i replaced what i thought to be a PCV valve. But, i have one on the drivers side also. Is this correct? It is a 1992 Z28 305/700R4. It ran really good till i did the PCV thing, now it surges when it gets warm and gets terrible mileage. But, you sure can tell the difference with the smog stuff off and gutting the air cleaner boxes. Thanks for that info! Anyway, can someone tell me what should go on the passenger side valve cover? Thanks

SpitotRs305

it should be a vent to the air intake some where or a breather if you prefer to have oil all over the engine compartment

ultimatefighter

A vent? Meaning a PCV valve?

ultimatefighter

Ok. I think i figured out the surging thing. The plug in wire on the front sensor to the intake fell off (whatever it is)...lol. Now it runs fine. Now i have done the "bypass the throttle body" thing. I didn't notice much difference, if any. But, i will say gutting the Intake filter area really helped. And of course the whole smog system delete did too.

SpitotRs305

no not a pcv you already have one you need to vent the other valve cover in some manner stock form it goes into the air intake track at some point before the throttle blades... some people use a small open element filter...

ultimatefighter

Well, will having a PCV in there hurt?

1320_Guy

iTrader: (3)

The point of that tube is to suck air into the motor. With a pcv valve there it wont.

ultimatefighter

Then what would i tell the parts guys that i want to put in it's place?

1320_Guy

iTrader: (3)

You could take the PCV valve you have and cut the bottom off and take the guts out.

SpitotRs305

if you gut the extra pcv make sure yiou dont have it after the throttle blades somehow